MPL-B330P-MJ74AA

由于TEC制冷和發(fā)熱的速率和電流的大小有關(guān)。為了快速升溫一般幾個(gè)帕爾貼級聯(lián)，此時(shí)需要高于能夠承受10A的電流驅(qū)動電路。傳統(tǒng)的TEC控制電路使用分立元件搭建H橋驅(qū)動，如圖3所示，這種方案設(shè)計(jì)復(fù)雜，尺寸大，但是能夠承受大電流。高度集成節(jié)省布板空間和成本。

TI現(xiàn)推出DRV824X-Q1系列的高集成度直流電機(jī)驅(qū)動方案，其采用BiCMOS高功率工藝技術(shù)，可提供出色的功率處理和熱性能，該系列引腳兼容，一旦完成一個(gè)設(shè)計(jì)，容易擴(kuò)展到這個(gè)系列其他的料號。以DRV8245-Q1為例，該器件作為TEC的H橋控制芯片具有以下優(yōu)勢。

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